去掉冗余代码

ruoyi-ui/src/views/childRoom/index.vue

@@ -580,10 +580,6 @@ export default {
       this.$message.success('航线收藏');
     },
 
-    showOnlineMembersDialog() {
-      this.showOnlineMembers = true;
-    },
-    
     hideRightPanel() {
       this.isRightPanelHidden = true;
       this.$message.info('隐藏右侧面板');